6 days late with a slight tinged discharge. When do I test?!

Please help me out!! I’m 6 days late and I’ve had x2 occurrences of slight tinged discharge one on Sunday night and the other yesterday afternoon,, woke up this morning and nothing!! I don’t feel any different, as in I’m about to come on as I usually get a headache, cramps and spots. I’ve got a cold and feel weak but that’s due to the cold!